html,
body {
  height: 100%;
}

#root {
  position: absolute;
  left: 50%;
  top: 50%;
}

#app {
  height: 100%;
  background-image: url(./img/wallpaper05.png);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  -ms-behavior: url(@/assets/polyfill/backgroundsize.min.htc);
}
